classicHashAvgClashListLength

When the CoS plug-in uses the hash table for fast lookup, if more than
one classic CoS template corresponds to the hash key used, the plug-in next
checks for matches in what is called the clash list, a list of templates sharing
an identical hash key. The value of this attribute provides the average length
across all hash tables of classic CoS template clash lists, giving some indication
of how much linear searching the plug-in must perform after using the hash
table during fast lookup.